Improvement in vehicle-hubs



UNITED STATES PATENT OFFICE;

JOSEPH H. LINDSAY, OF FREEHOLD, (WOODSIDE P. O.,) PENNSYLVANIA.

IMPROVEMENT IN VEHlCLE-HUBS.

Specification forming part of Letters Patent No. 166,283., dated August 3, 1875 application filed' May l, 1875.

Figure l is a view of the outer end of one of my improved hubs, the screw-cap being removed Fig. 2 is a longitudinal section of the same, taken through the line 00 w, and showing the screw-cap in place.

Similar letters of reference indicate correspondin g parts.

The inventionwill first be described in connection with the drawing, and then pointed out in the claims.

A representsthe axle-arm, which has a collar, a formed upon its inner end, and a flanged nut, otZ'screWed upon its outer end. B is the inner part of the hub, which has a ring flange or projection, 1) formed upon its inner end to project over the collar a of the axle-arm A, to serve as a mnd band to keep out mud and dust. Upon the middle part of the outer end of the part B of. the hub is formed a tubular projection, b the outer end of which rests against the flange of the nut 01?, so that the said nut may keep the hub in place upon the axle-arm A. Upon the outer side or shoulder of the part B of the hub are formed wedge-shaped projections b the inner parts of which are made with a sharper taper than their outer parts, so as to make the inner parts of the spaces between said projections dovetailed in form, so as to prevent the spokes (l, the inner ends of which are fitted into said spaces, from being drawn'out. The projections '1) are made of a height equal to the breadth of the spokes (J, so that the outer surfaces of said projections may be flush with the outer edges of said spokes. D is the outer part of the hub, which has a screw-hole in its (enter, to lit upon the screw-thread formed upon the outer surface of the tubular projec tion I) of the part B. The outer end of the part D is closed to cover the nut a, and thus prevent the egress of oil and the ingress of dust and mud., By this construction, when the part D is screwed up its inner end will rest against the projections 11 and the edges of the spokes (l, and thus lock the said spokes in place. Upon the outer parts of the projections b are formed segments of a ring-flange, b, which enter a ring-groove,'d, in the part D, and thus strengthen the connection between the parts B D of the hub. In the body of the part B of the hub is formed a chamber,

E, to receive the oil, from which chamber a hole, 6 leads into the bore of the hub, and through which the oil passes to the axle-arm A. The inner end of the hole e -is surrounded with a recessed or cup-shaped projection, 6 in which is placed a ball, 0 to act as a valve to prevent the oil from flowing through the hole 6 when the wheel happens to stop with the oil-chamber E upward. From the oilchamber E a hole, 6 leads out through the body of the part B of 'the hub, through which the oil is poured into said oil-chamber E, and which is closed with a screw, 6 The screw 6 should be of such a length that its inner end may serve as a stop to prevent the ball 6 from escaping from the recess of the projection e when the oil-chamber iscarried around by the revolution of the wheel.

Having thus described my invention, I claim as new and desire to secure by Letters Patcut-- 1. The chamber E, having amedian automatic valve, 0 and raised hollow valve-seat over the inlet-port 6 as and for the purpose specified.

2. The segmental ring-flan ge 1), formed upon the projections b of the part B, in connection with the ring groove d formed in the part D of the hub, substantially as herein shown and described. V

JOSEPH HENRY LINDSAY.

Witnesses:

DANIEL BooK, ISAAC GOODMAN. 

